Sili ona lelei o le Liquid Unsaturated Polyester Resin mo le Marine Fiberglass Resin
O resins unsaturated o ni polymer compound e masani ona faia i monomers unsaturated (e pei o le vinylbenzene, acrylic acid, maleic acid, ma isi) ma cross-linking agents (e pei o peroxides, photoinitiators, ma isi). O resins unsaturated e fa'aaogaina i le tele o fa'aoga ona o lo latou faigofie ona fa'agasolo lelei ma le malosi tele.O lenei resin UPR ua fa'alauiloaina ma fa'aleleia atili e le thixotropic le unsaturated polyester resin ua gaosia mai le phthalic acid ma le maleic anhydride ma diols masani. Ua fa'a'asu'uina i le styrene monomer, ma le viscosity feololo ma le reactivity.
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